Motor



J. BUUR.

AUTOMOBILE MACHINERY.

APPLICATION FILED NOV. I9. I9I4,

.1 ,3 1 6,998, Patented sept. 23, 1919. l

2 SHEETS-SHEET I.

J. BUUR.

'AUTOMOBILE MACHINERY.

APPLICATION FILED NOV. 19, |914. A 1,316,998. PatentedSept. 23, 1919.

K 2 SHEETS-SHEET 2.

1I JJ 57 59g 58 l I l I v t@ 'HIP I 25 27 24 f i 26 8 Q) 31 -lV/TNESSES:

` INI/EN TOR.

UNITED STATES PATENT oEEIcE.

JOSEPH BIJUB, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TOBIJ'UB MOTOR APPLIANCE COMPANY, A. CORPORATION OF DELAWARE.

AUTOMOBILE MACHINERY.

Patented sept. 23, 1919.

Application led November 19, 1914.l Serial No. 872,916.

` To aZZ whom it may concern:

Be it known that I, JOSEPH Bunn, a. citizen of the United States, andresidlng at 122 East th street, New York, in the county of New York andVState of New York, have invented new and Improved Automobile Machinery,of which the following specification is a full disclosure.

This invention ,relates to automobile machinery, although certainfeatures thereof are applicable in other relations.

011e of the objects thereof is to provide simple and compact dispositionof parts whereby a dynamo is effectively connected with an internalcombustion engine.

Another object is .to provide apparatus of the above type in which thedynamo 1s maintained in most efiicient condition without complicatingthe formpor arrangement of the parts.

Another object is to provide apparatus of the type first mentioned inwhich .the power transmitting elements are adapted to meet thehardestuse without injury.

Other objects will be in part obvious from the annexed drawings and inpart indicated in connection therewith by the following analysis of thisinvention.

This invention accordingly consists in the features of construction,combinations of parts, and in the unique relations of the members and inthe relative proportionlng and disposition thereof; all as morecompletely outlined herein.

To enable others skilled in the art so fullyto comprehend the underlyingfeatures thereof that they may embodyw the same by the numerousmodifications in structure and relation contemplated by this invention,drawings depicting a preferred form have been annexed as a part of thisdisclosure,

` and in such drawings, like characters of referencedenote correspondingparts throughout all the views of which Figure 1 is a front sectionalelevation of an automobile engine,- the section being Fig. 4 is asemi-diagrammatic side elevation of the parts shown in Fig. 1 on areduced scale.

Fig. 5 is a side view of portions of a dynamo, certain parts beingcutaway along a central plane in order to show the construction moreclearly.

Referring now to Fig. 4 of the drawings, there are indicated at 1 and 2the cylinders of a -multiple-cylinder internal-combustion engine inwhich the crank shaft 3 isdriven by the cranks 4 and in turn drives aclutch 5 of any desired type. Forwardly from the engine, the crankshafthas secured thereon a spiralA gear or worm wheel 6 and another gearor worm 7 and thence passes through end wall 8 and the radiator, 9 beingprovided with a pulley 10 which drives by means of a belt 11 thepropeller fan 12 discharging rearwardly toward the engine.

Meshing with gear 7, as indicated in gear 15 upon t e armature shaft 16of a dyi namo 17, hereinafter described.v It may here be noted that bythe term spiral gear is meant a gear in which the teeth are inclinedwith respect to its axis of rotation in a direction other than that ofelements of a cone about the said axis. In other words, the teeth ofsuch a gear, as the term is herein used, lle substantially in acylindrical surface about its axis of rotation and yet are -mclmed 1nnon-parallel relation to such axis. The form of spiral gearing hereinshown is substantially that of a worm and wheel, the pitch of thethreads or teeth preferably belng such that the gearing is reversibleand either gear vmay be used to transmit power to and drive the other. f

Extending` about crank shaft 3 and the several gears above mentioned, isa casing 18 known as the crank-case containing heavy oil to such a depthas tosubstantially submerge the gearing. This casing is provided 'f witha relatively detachable upper portion 19 through which the shaft 16 andother parts pass, thus tending to hold them in alinement. It may benoted, moreover, that the casing is separable into other ortions inorder to permit the ready assemb ing or removal of the parts, but it isbelieved unnecessary to show here the details of the various portionsand means by which the are secured together. It may be note at thispoint, however; that the casing serves not only to aid in holding theparts in osition but maintains the gearing in well lu ricated and quietrunnin condition without the chance of oil wor ing into the 'vulnerableportions of the dynamo.

The teeth of the gear 6 are so curved in a direction arallel to thecrank shaft, as is indicated in Fig. 3 of the drawings, that a slightendwise movement of the gear may be permitted without tending to bindtheteeth of gear 15 meshing therewith. This is accomplished by makingthe radius of curvature of the teeth of gear 6 in a direction lengthwiseof the crank shaft greater than the radius of curvature in that locationof the teeth of gear 15. A material lateral movement of gear 6, however,is prevented by mounting it upon the s lined collar 20 which is securedto the cran shaft 3 in such manner as to permitan endwise movement ofthe latter without imparting a corresponding movement to the gear. Thehubs of gear 6 arepreferably engaged by the bearing collars 21 which are`fast upon the casing 18 or other part of the engine frame. .In thismanner the clutch 5 may be thrown in. and out with any desired degree offorce without tending to cramp the above spiral gearing.

Referring now to Fig. 5 of the drawings, there is shown somewhat indetail the construction of dynamo 17.

The latter preferably takes the form of a machine adapted to act eitheras a motor or generator, although certain features of this invention maybe embodied in apparatus in which either a motor or a generator besparately used. The armature shaft 16 passes at the lower end. of thegenerator through a double thrust bearin 22 substantially opposite thecasing portion 19. This bearing is formed by providing a collar 23 fastupon the shaft 16 and having raceways 24 and 25 for the balls 26 and 27.The mating raceway for the set of balls 27 is formed in a collar 28 andin like manner a collar or ring 29 provides an outer raceway for theballs 26. These'outer raceways are gri ed by a flanged ring 30and firmlyheld wit in the tubular extension 31 of the dynamo head. ring 32threaded upon the shaft E16 aids ian holding the inner bearing'd'nemberin position andthe outer bearing members are supportedby a ring 33,which isin turn held in position by a anged collar 34 threaded upon thedynamo head at 35. In this manner there is provided a bearing which notonly permits free rotation of the shaft but is well adapted to resist athrust in either an upward or downward direction, according as thedynamo is driving or bein driven from the engine.

he upper end of shaft 16 rests within a ball-bearing 86. The amplelubrication of this bearing without the chance of the oil runningdownwardly into thel armature or ossibly the commutator of the dynamo,is highly desirable and is accomplished by means of a flanged ring 37which receives and delects from the shaft the oil dripping from thebearing immediately above the same. This oil so diverted asses into anannular passage 38 and is t ence drained away through a passage 39 to apoint outside the dynamo casing. In this mannen the dynamo may be usedin an upright position without the chance of injury and yet will bemaintained in a well lubricated condition. It will also be seen thatthis arran ment not only rovides a compact disposition but permits t egear 15 to be well lubricated without the necessity for providing astuffing box or other tight connection at the point where the shaftpasses through the caslie operation of the above described apparatus issubstantially as follows:

Assuming that dynamo 17 takes the form of a motor generator and that itbe desired to start the engine, the current is passed from a suitablestorage battery to rotate the shaft 16. This action causes the turningover of the crank shaft with compression in the engine cylinders, andupon the engine starting, power is transmitted therefrom to the dynamo17 which now runs as a enerator and charges the storage battery romwhich it received current when acting as a motor. The dynamovl, beingpositioned in the path of discharge ofthe fan 12, is maintained in coolcondition even though acting under heavy load and its double thrustbearing permits it either to drive or be driven without tendency todisplace its shaft. It will also be noted that by the. disposition ofthe dynamo as above noted upon the o posite side of the crank shaft fromt e cam shaft 14, each is balanced to a lar e extent by the other; a intof considerab e advantage in' light ve icles in which the crank shaftruns lengthwise substantially at the center of the vehicle.

It will thus be seen that there is pro- I vided ap aratus in which theseveral objects of t is invention are achieved.

As many changes might be made in the above construction, differentembodiments might be made of this invention without departing from theyscope thereof, it is intended that all feaand asmany apparently

